Well, if the pinwheels cost $1 each, then 10 dimes is what it would take to pay for them. 10 dimes = 1 dollar, because a dime has a value of 10 cents and 10 times 10 = 100, and there is 100 cents in a dollar.
Answer:
x ≤ 4
Step-by-step explanation:
Solve the inequality
5x - 18 ≥ 2(4x - 15)
Expand the expression
5x - 18 ≥ 8x - 30
Rearrange the terms
5x - 8x ≥ -30 + 18
Combine like terms
-3x ≥ -30 + 18
Calculate
-3x ≥ -12
Divide both sides
x ≤ -12/-3
Calculate
x ≤ 4
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Answer:
option b
Step-by-step explanation:
Answer: subtraction property
x-(-6)=18
x+6=18
Subtract 6 from both sides
And you get x=12
Answer:
Lacrosse = 62 students
Swimming = 62 students
Soccer = 124 students
Football = 186 students
Step-by-step explanation:
Based on the information, we can draw some equations
<em>1.</em> Lacrosse = Swimming
<em>2.</em> Soccer = 2 * Lacrosse
<em>3.</em> Football = 3 * Swimming
<em>4.</em> Football + Soccer + Swimming + Lacrosse = 434
Lets solve for once sport at a time, I will start with Football.
I will put equation 1, 2 and 3 into equation 4
3Sw + 2L + L + L = 434
We can now again put equation 1 into the new equation 4
3L + 2L + L + L = 434
Simplify
7L = 434
L = 434 ÷ 7
L = 62 students
Since L = Sw, 62 students did swimming also
We can put L into equation 2 to solve for So
So = 2 * 62
So = 124 students
And now we can put Sw into equation 3 to solve for F
F = 3 * 62
F = 186 students